Test F: DTCs B2844 and U2472 -Ignition Fault and Unexpected Ignition State

Pinpoint Test F: DTCs B2844 and U2472 -Ignition Fault and Unexpected Ignition State
Refer to Vehicle/Diagrams, Power Distribution/SJB for schematic and connector information.

Normal Operation
The ignition switch has 4 possible positions (states):
^ OFF - No power on any circuit.
^ ACC - Power on circuit CDC33 (VT/GN)
^ RUN - Power on circuits CDC34 (WH/OG), CDC33 (VT/GN) and CDC32 (BN/YE)
^ START - Power on circuit CDC35 (BU/WH)
The smart junction box (SJB) continuously monitors the ignition switch state.
^ DTC B2844 Ignition Fault - If the SJB receives an invalid ignition state or cannot detect the ignition switch state during normal operation, DTC B2844 will be set.
^ DTC U2472 Unexpected Ignition State - If the SJB does not receive the ignition RUN signal or any ignition switch signal during the SJB self-test, DTC U2472 will be set.

This pinpoint test is intended to diagnose the following:
^ Wiring, terminals or connectors
^ Ignition switch
^ SJB

F1-F4:

F4 (Continued)-F7: